Spring Boot 数据校验@Valid+统一异常处理的实现

 @Entity
 @Table(name = "User")
 @Data
 public class User implements Serializable {

 @Id
 @NotNull(message = "id不能为空")
 @GeneratedValue(strategy = GenerationType.IDENTITY)
 private Integer id;

 @NonNull
 @NotBlank(message = "姓名不能为空")
 @Column(name = "name")
 private String name;

 public User() {
 }

 public User(Integer id,String name) {
  this.id=id;
  this.name = name;
 }


}

 @PostMapping("/saveUser")
 public ServiceResult addUsers(@Valid @RequestBody User user){
   return ServiceResult.success(userRepository.save(user));
 }

@RestControllerAdvice
@ExceptionHandler(写你想要拦截的异常类型)

@RestControllerAdvice
public class BadRequestExceptionHandler {


 private static final Logger logger = LoggerFactory.getLogger(BadRequestExceptionHandler.class);

 /**
  * 校验错误拦截处理
  *
  * @param exception 错误信息集合
  * @return 错误信息
  */
 @ExceptionHandler(MethodArgumentNotValidException.class)
 public ServiceResult validationBodyException(MethodArgumentNotValidException exception){

  BindingResult result = exception.getBindingResult();
  if (result.hasErrors()) {

   List<ObjectError> errors = result.getAllErrors();

   errors.forEach(p ->{

    FieldError fieldError = (FieldError) p;
    logger.error("Data check failure : object{"+fieldError.getObjectName()+"},field{"+fieldError.getField()+
      "},errorMessage{"+fieldError.getDefaultMessage()+"}");

   });

  }
  return ServiceResult.error("请填写正确信息");
 }

 /**
  * 参数类型转换错误
  *
  * @param exception 错误
  * @return 错误信息
  */
 @ExceptionHandler(HttpMessageConversionException.class)
 public ServiceResult parameterTypeException(HttpMessageConversionException exception){

  logger.error(exception.getCause().getLocalizedMessage());
  return ServiceResult.error("类型转换错误");

 }

}